Won't Idle and more?

Hi I just rebuilt my kz700 (put a 750 motor on it) and now it runs great but it won't idle.......but if you turn the idle up so it will idle (about 900 rpms) then when you give it gas it will stay reved up for a few seconds..... so I am guessing it is runing lean.... Now I cant "feel" any air leaks around the engine. But could the timing do this? My 700 stator wouldnt bolt properly to the 750 case but I managed to get the two bottom holes lined up and it is securley fastened but the top hole doesnt line up. Could this maybe make the timing "advanced" thus' causing the bike to run lean? Or one other thing that I am thinking may be causeing my problem is, I am useing my kz700 carbs with the original jets and everything, do you thinks these jets could maybe be to small for the 750 engine...
Well I am stumped and hopefully you guys can help!
sorry if this is confusing lol I have so much to say and it is hard to word it properly...

THANKS
BLAIR

hmmm.... I just put a set of 750 carbs on instead of my 700 ones and still the same thing.....I guess I am now going to go check the valve clearance hmmmm I am stumped....


BLAIR:pinch: :S

I am thinking you have a vacum leak someplace, try to spray some wd 40 around the intake boots, also if you are trying to use the stock tach to set the idle you will not be accurate, the tachs tend to jump around a lot